upstream migration meaning in Chinese
溯河洄游
向上游洄游
Examples
- At the left side of the photo is fish ladle to facilitate the upstream migration of oshima to the intake were for their habitation and reproduction
照片左侧为鱼梯,以便濒临绝种之?鱼能溯河迁徙至取水堰上游,供其繁衍栖息。
溯河洄游
向上游洄游